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Name _________________________________________ Date _________________ Class ___________________________ MATH SKILLS TRANSPARENCY 42 Use with Chapter 24, Section 24.2 Solving Half-Life Problems Chemistry: Matter and Change 1 Math Skills Transparency Name _________________________________________ Date _________________ Class ___________________________ MATH SKILLS TRANSPARENCY 42 Use with Chapter 24, Section 24.2 Solving Half-Life Problems 1. Write the nuclear symbol for the missing term in equation 1. ______________________________________________________________________________________________ 2. How much time has passed when 3.0 g 242 98 Cf remain? ______________________________________________________________________________________________ ______________________________________________________________________________________________ 3. How much 242 98 Cf remains after 21 minutes? ______________________________________________________________________________________________ 4. Write the nuclear symbol for the missing term in equation 2. ______________________________________________________________________________________________ 5. How long will it take for 60.0 g of the original 131 53 I sample to decay? ______________________________________________________________________________________________ ______________________________________________________________________________________________ 6. How much 131 53 I remains after 56 days? ______________________________________________________________________________________________ 7. Write the nuclear symbol for the missing term in equation 3. ______________________________________________________________________________________________ 8. How much of the isotope 146 64 Gd remains after 290 days? ______________________________________________________________________________________________ 9. How much time has passed when 9.00 g 146 64 Gd remain? ______________________________________________________________________________________________ Chemistry: Matter and Change 2 Math Skills Transparency Worksheet TEACHER GUIDE AND ANSWERS Chemistry: Matter and Change 3 Teacher Guide and Answers
